The siliciclastic sediments of the Okavango inland Delta of northwest Botswana have a modal composition of quartz arenites
and result from a complex history, including transport by river and deposition in a nascent rift ...

The Nguba and Kundelungu Groups constitute the middle and upper parts of the Neoproterozoic Katangan Supergroup, respectively,
and consist of conglomerates, sandstones, mudrocks and carbonates. During deposition, the ...